AA 9909 then UA 714 at O'Hare
Waterloo → Chicago → Houston
Timetable, Chicago time
17:10AA 9909 from Waterloo at the gate
16:07UA 714 to Houston leaves the gate
22 h 57 apart on the timetable, overnight
UA 714 leaves 22 h 57 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.